How Much Does a Shingle Roof Cost?

Highlights

• The typical cost range to install a shingle roof is from $4,500 to $20,000, with an average cost of $9,000.
• The exact cost will vary depending on several factors, such as roof size and slope, shingle material and brand, labor costs, and geographic location.
• A shingle roof has many benefits, including versatility, affordability, flexibility, fire and wind resistance, and algae resistance. A shingle roof also offers sound protection, numerous design and color options, and easy installation and maintenance.
• Roofing is a difficult and potentially dangerous project that is not advisable for the average homeowner to complete themselves. A roofing professional has the skills, experience, and equipment to install a shingle roof properly and efficiently.

Replacing or repairing a roof isn’t exactly the most exciting home improvement project, but it’s sometimes necessary. A roof may need to be replaced due to old age or storm damage or even aesthetic reasons. Leaving a bad roof unchecked can lead to significant financial and safety risks for homeowners.

When it is time for a replacement or even a new roof for a new build, a shingle roof is one option for homeowners to consider. Shingle roofs are versatile, energy efficient, and durable when properly installed and maintained. They’re also fairly affordable; according to Angi, shingle roof installations typically cost between $4,500 and $20,000, or an average cost of $9,000, depending on a roof’s size and pitch, shingle materials, and local labor costs.

This guide will cover more information about the different factors that drive shingle roof costs, the types of shingle roofs homeowners can choose from, the benefits of choosing a shingle roof, the choice between DIY or hiring a professional, tips and tricks for saving on shingle roof installation, and advice on hiring the right professional for the job.

Factors in Calculating Shingle Roof Cost

The price of a new shingle roof can vary widely depending on a number of factors; a smaller roof may cost closer to the low end of the cost range, while a large, complicated roof could cost $20,000 or more to install. What follows is a closer look at some of the biggest factors that influence shingle roof cost.

Roof Size

Size plays an essential part in determining the cost of roof shingle installation. Installation prices typically range from $4 to $30 per square foot, depending on material choice. Asphalt shingles tend to cost less, while slate and copper options can cost significantly more.

Generally speaking, installing shingles on a larger roof requires more materials and labor, driving up installation costs. However, a smaller home doesn’t always mean a less expensive shingle roof cost. This is because roof square footage is calculated differently than interior square footage, as the calculation must consider design and pitch. Materials are usually sold and installed per square, which is equivalent to 100 square feet. The cost of shingles per the number of roof squares is listed in the table below.

Number of Squares	Square Footage	Cost Range (Materials and Installation)
12	1,200	$4,800 to $36,000
15	1,500	$6,000 to $45,000
20	2,000	$8,000 to $60,000
25	2,500	$10,000 to $75,000
35	3,500	$14,000 to $105,000

Roof Slope

The slope of a roof is an essential consideration when homeowners are estimating the cost of installing shingles, with steeply pitched roofs being more challenging and dangerous to work on than flatter ones. A roofing company will often charge more to install roof shingles on jobs that involve more skill, risk, and equipment. For example, a contractor is likely to charge more when working on a two-story home than on a single-story home.

On the upside, steeply pitched roofs typically outlast flatter designs, as water tends to run off more easily on steep roofs and they accumulate less debris. This reduces the risk of water damage and algae growth. Steeper roofs can also help keep homes cooler during the summer. With the extended lifespan and the lower cooling bills, the additional costs that come with installing a steeper roof can often be made up elsewhere.

Shingle Material

While all shingle materials are practical, they’re not all equal in terms of characteristics and performance. Each variety has distinct qualities and pricing points that separate it from the others. Asphalt shingles, for example, are one of the most cost-effective, long-lasting, and simple-to-install shingle materials available. Asphalt shingles generally range in price from $1 to $1.50 per square foot.

Metal shingle roofs tend to cost more, ranging from $3 to $18 per square foot. While more expensive, they tend to last longer than asphalt shingles and require less maintenance. Clay and slate shingles tend to cost the most, typically priced from $8 to $18 per square foot. While they are remarkably durable and stylish, their high cost makes them less popular among homeowners on a budget.

Shingle Brand

The brand of shingles used for a roofing project can have an enormous impact on the total cost. While certain brands are renowned for their longevity and durability, others may not hold up as well over time.

Homeowners are advised not to shop by price alone but rather by value. The lowest-priced option may end up costing more in the end with repairs and premature replacement. On the other hand, the most expensive may not be the top-performing option. The following table shows the price ranges of some top shingle brands for homeowners to consider.

Brand	Price per Square Foot (Material Only)
CertainTeed’s Landmark	$1.20 to $1.70
GAF Timberline	$1.15 to $1.25
IKO	$1 to $1.20
Malarkey	$1.30 to $2
Owens Corning	$1.37 to $2.81
Tamko	$0.90 to $2.30

Labor

Labor costs play a substantial role in determining the total cost of installing shingles roofing; in fact, labor expenses account for as much as 70 percent of shingle roof costs.

Labor costs associated with installing a roof can typically range from $30 to $80 per hour. However, roofing labor cost per square can fluctuate based on several factors, including roofer experience, workmanship quality, and location of the home. Roofs with steep pitches or complex designs may incur additional labor costs during installation as well.

While many roofers charge by the hour, some may charge a flat fee per square for installation. Others prefer to charge by the day or by the project. It’s recommended that a homeowner receive several roofing shingle prices for materials and labor to ensure they’re getting the best value.

Geographic Location

The cost of installing a shingle roof depends heavily on its location, as an area’s cost of living can influence labor and material costs. Different locations experience different weather patterns, and extreme weather conditions may require more robust roofing materials that can come with a higher price tag. Certain materials may be less available than others, creating the potential for transportation costs. Even local tax rates can heavily influence the final cost of shingling a roof.

Additionally, areas with a high demand for roofing services may have higher labor costs, as roofing contractors can charge a premium for their services when there’s a higher local demand. Finally, if an area doesn’t have enough qualified roofing contractors, a homeowner may find themselves paying for transportation and travel for a roofing crew. The following table shows the average price ranges for shingle roof installation in several states.

State	Price Range
Arizona	$5,600 to $10,000
California	$6,400 to $15,400
Colorado	$6,300 to $12,300
Florida	$8,000 to $16,500
Maryland	$4,500 to $9,500
Michigan	$6,550 to $11,900
New Jersey	$5,800 to $10,000
Texas	$5,800 to $10,600
Washington	$7,000 to $13,800

Additional Costs and Considerations

There are some shingle roof costs that go beyond the basic materials and installation. While not all of the following scenarios and considerations are guaranteed, it helps for homeowners to understand how each can influence shingle roof costs so that they can avoid any budget-busting surprises.

New vs. Replacement Roof

A roof installation can be considered a new roof or a replacement. A new roof refers to installations on new homes that have never had a roof before. Roof replacement costs can take into account factors such as old roof removal and roof repairs in addition to shingle installation—these additional factors could make replacement cost more than new roof installation. However, replacing an existing roof could be more affordable than installing a new roof, since the underlying structure is already in place.

Permits

Permits may be required by local governments for new roof installation or reroofing projects. They can cost as much as $500 in some areas, which can increase the total cost of a roofing project.

Although permits may seem like unnecessary expenses, they ensure all roofing work meets safety and building code requirements. Completing a roofing project without a permit can result in fines or legal issues. The good news is that most roofing contractors work the cost and legwork to secure a permit into their fees, so homeowners rarely have to manage permit pulling on their own.

Old Shingle Removal

Before homeowners install a new shingle roof, it’s often necessary to remove the old shingles first. Leaving old shingles in place can create an uneven roof. New shingles can also begin to wear more quickly or not adhere properly if an existing roof is left in place.

Removal involves stripping off the roof’s existing shingles and inspecting beneath for damage or deterioration. Cost estimates for old shingle removal range from $1 to $5 per square foot and can total anywhere from $1,000 to $1,500. Contractors usually charge hourly rates between $40 and $80 to remove existing shingles from a roof.

In some cases, it may be possible to install new shingles over existing ones. This is called a roof-over. However, while a roof-over may save on removal costs, it can add weight to a roof that may not be safe or appropriate in all situations.

Roof Repairs

A shingle roof replacement cost can be higher than anticipated if any repairs are required before the installation can begin.

Possible repairs could include the following:

• repairing or replacing damaged flashing around chimneys, vents, and skylights
• fixing leaks in the roof decking or underlayment
• repairing or replacing damaged gutters or downspouts
• fixing roof sagging or structural damage
• removing moss or algae growth and repairing any resulting damage
• repairing or replacing damaged soffit or fascia boards
• addressing any ventilation issues, such as adding or repairing roof vents or exhaust fans

While some homes may require only minor repairs, others could require extensive ones that significantly increase the costs of the job. When budgeting for a new roof, homeowners will always need to consider its age and condition, as roof repair costs are more likely on an older or worn-down roof.

Roof Reinforcement

Roof reinforcement is the process of strengthening an existing roof structure to accommodate the weight of a new shingle roof, usually by adding support beams or columns. An existing home’s roof may need reinforcement if it is damaged, has deteriorated, or does not meet local building codes.

Roof reinforcement certainly adds additional expenses to a shingle roof installation, depending on extent of the damage. However, skipping roof reinforcement could pose serious safety concerns and possibly cause a replacement to fail.

When installing a new shingle roof, either on their own or through a roofing company, homeowners will want to consult a qualified roof inspector and budget for roof inspection costs to determine whether additional reinforcement is required.

Warranties

A warranty from a shingle manufacturer or roof installer can provide a homeowner with additional peace of mind regarding the quality and performance standards of a product or service.

Warranties provide protection from defects in materials and craftsmanship as well as any issues during installation. Sometimes warranties are included with the purchase of materials or the selection of services. For example, manufacturers tend to offer warranties on their shingles as part of the purchase price, though it’s important to note that these warranties can be voided if installation is not done by a professional.

Some warranties are charged as a separate and optional fee. Before signing off on any warranty agreement, homeowners will want to carefully read and understand its terms, as some warranties may contain exclusions or limitations that severely reduce their coverage.

Types of Shingle Roofs

Homeowners can choose from several types of shingles when installing a roof. Each type has its own unique features and benefits that influence the average cost to reshingle roofs. Understanding the difference between roof shingle types can help homeowners decide which is best for their needs and budget. The following shows the costs per square foot, per bundle, and per roof square for each type of shingle roofing material.

Material Type	Cost per Square Foot	Cost per Bundle	Cost per Roof Square
Asphalt	$1 to $1.50	$30 to $50	$100 to $150
Cedar wood shake	$4.88	$160	$480
Clay tiles	$8 to $18	$270 to $600	$800 to $1,800
Composite	$7.50 to $13	N/A	$750 to $1,300
Metal	$3 to $18	$100 to $600	$300 to $1,800
Slate	$8 to $18	N/A	$800 to $1,800
Solar	$22	N/A	$2,200

Asphalt

Asphalt shingles consist of fiberglass mats that have been covered with asphalt and topped with mineral grains for color and texture. Asphalt shingles come in three varieties: three-tab, architectural, and dimensional.

• Three-tab shingles are the most basic and affordable option, costing around $100 per square. They have a flat appearance with three cutouts, giving the illusion of three separate pieces.
• Architectural shingles cost slightly more at $100 to $150 per square and feature an extra layer of lamination for a contoured appearance.
• Dimensional shingles, or 3D shingles, mimic the look of high-end wood shingles with their highly sculpted shape. They are the most expensive type of asphalt shingle, costing an average of $480 per square.

When homeowners are choosing among the different types of asphalt shingles, factors to consider include budget, desired appearance, and wind resistance. While three-tab shingles are the most budget-friendly, architectural shingles offer a more contoured appearance and slightly more durability. Dimensional shingles are the most expensive but provide the most realistic wood shake appearance.

Cedar Wood Shake

Cedar wood shake shingles are a popular roofing choice known for their rustic beauty and unique character. These shingles are typically made from white cedar or Eastern white cedar and cost an average of $480 per square or $160 per bundle.

One of the benefits of cedar wood shake shingles is their natural resistance to insects and decay. However, they do require regular maintenance to avoid rot, cracks, algae growth, and leaks. Homeowners must clean these shingles regularly and apply a wood preservative every two to five years. Additionally, cedar wood shake shingles are not ideal for areas with high humidity, as moisture can cause them to warp or split.

Despite the maintenance requirements, many homeowners choose cedar wood shake shingles for their aesthetic appeal and natural durability.

Clay Tiles

Clay tiles offer a classic and sophisticated option when homeowners are selecting roof shingles, adding charm and character to a home. Crafted from natural clay and formed into interlocking tiles, they have a distinctive curved shape that creates a striking appearance.

Clay tiles offer many advantages, with durability being their key selling point. Proper care can extend their lifespan up to 100 years. Clay tiles are also fire-resistant and can withstand severe weather conditions like heavy rainfall and strong winds without succumbing to damage.

Clay tiles may offer many advantages. However, their initial installation costs can be steep, with an estimated average installation cost of around $700 per 100 square feet. Furthermore, clay tiles are heavy, requiring extra support on a roof to accommodate them safely. Walking on them may also be hazardous and cause damage.

Composite

Composite roof shingles are made from a mixture of materials, including asphalt, fiberglass, and recycled materials. They’re typically designed to resemble other types of shingles, like wood or slate, but with lower maintenance requirements and a more affordable price tag. Also known as composition shingles, they come in a range of materials, colors, and styles.

Composite, or fiberglass, shingles are quite durable. They can last up to 50 years and are ideal for locations with severe weather patterns. They’re lightweight, making them easy to install without adding strenuous weight to a structure. However, composite shingles may not have the same visual appeal as other materials. Composite shingles range from $7.50 to $13 per square foot or $750 to $1,300 per square.

Metal

Steel or aluminum metal shingles resemble traditional asphalt shingles and cost between $100 and $300 per bundle or $350 to $1,800 per square. Their prices are generally determined by the material’s complexity and the roofline’s design; for example, the cost to install a standing seam metal roof may be higher than the cost to install a corrugated metal roof because they are more complex and can take more time to install.

In addition to their durability, fire resistance, energy efficiency, and longevity, metal shingles come in various roof shingle colors and styles. When comparing a metal roof vs. shingles made from a more common material like asphalt, metal can be much louder. To help reduce the sound of rain or debris, a homeowner may want to add insulation. Metal shingles may also dent or scratch easily, detracting from their appearance. Homeowners will want to carefully consider these potential concerns when exploring metal as a roof shingle option.

Slate

Slate shingles are elegant roofing tiles made from natural slate rock. They can last hundreds of years with proper care. Slate shingles are typically dark gray, although other shades such as green, purple, and red also exist.

While their durability is appealing, it comes at a price: Slate shingles can be a more expensive option compared to other roofing materials. Costs range anywhere from $800 to $1,600 per square. The installation process for slate shingles tends to be more complicated and requires skilled labor and specialized tools, which can also drive up the installation cost.

It’s also important for homeowners to note that slate shingles are heavy. Some structures require reinforcement before a slate shingle roof can be installed, further increasing the overall cost.

Solar

Solar shingles are an innovative, sustainable, and environmentally friendly roofing option that allows homeowners to harness sunlight to generate electricity for their home. While they are an attractive concept for most homeowners, solar shingles aren’t ideal for every property, as they require direct sunlight for most of the day to generate enough power. Solar shingles may or may not be beneficial depending on a home’s location and geographic orientation.

Solar roofing shingle prices can be significantly higher than prices for other materials, running approximately $2,200 per square. However, the potential energy savings over time can more than absorb the initial cost of solar shingles.

Benefits of Choosing a Shingle Roof

Shingle roofs come with a range of benefits that make them a popular choice for many homeowners. Some of the biggest benefits are explored below.

Versatility

Versatility in a roof refers to its ability to complement a wide range of styles and designs. A nonversatile roof can hinder a homeowner’s ability to make changes to their home’s exterior or negatively impact its value. A shingle roof’s versatility offers both cosmetic and functional benefits that positively affect a home’s value.

Shingle roofs are available in a variety of colors, textures, shapes, and profiles to suit a homeowner’s architectural style and personal preferences. It’s also possible to install shingles on steeply pitched and low-pitched roofs, setting shingles apart from other materials that are limited in their application.

Affordability

Shingles are generally cheaper to purchase and install than other roofing materials, such as metal and tiles. Shingle roofs offer a cost-effective and affordable solution to outdated or deteriorating roofs that are still attractive and functional. As a bonus, shingle roofs are often easy and cost-effective to maintain.

Opting for an affordable roof allows a homeowner to allocate their financial resources toward other home improvement projects or investments. Choosing a more expensive roofing material may limit a homeowner’s ability to make additional upgrades or repairs to their home or add additional financial strain to the household budget.

Sustainability

Sustainable roofs are long-lasting and durable. They’re also environmentally friendly and reduce a home’s carbon footprint. Homeowners who choose a sustainable roof enjoy many advantages, including energy efficiency and long-term cost savings.

Shingle roofs are sustainable roofing options since they are made of materials that can be easily recycled. Moreover, some shingle roofs are Energy Star certified by the U.S. Environmental Protection Agency, reducing energy consumption and lowering utility bills. It’s essential, however, for the shingle roof to be installed and maintained properly to ensure its durability.

Flexibility

In comparison to other common roofing materials, shingles are quite flexible. Thanks to the elasticity of certain shingle roofing materials, like asphalt and fiberglass, homeowners are less likely to notice cracking, warping, or other types of damage associated with temperature changes on their roofs.

On the other hand, a roof that lacks flexibility can become damaged more easily. This is especially true in geographic locations where temperatures fluctuate wildly or where high winds are common. By choosing a shingle roof, homeowners can rest assured that their roofing materials can better withstand the elements, which means there is less chance of costly repairs or premature replacement.

Fire and Wind Resistance

Shingle roofs are resistant to both fire and wind. Should a home or nearby structure catch on fire, certain types of shingle roofs can slow or even stop the spread of the flames. Specifically, fiberglass shingles will not ignite, and all shingle roofs can be treated with fire-retardant coatings that help protect against fire.

When it comes to wind or severe weather, a shingle roof is more likely to remain intact than other a roof made from other materials. A fire- and wind-resistant roof is ideal, since it helps protect both a home and its occupants. On the other hand, a roof that is not as resistant can be easily damaged or destroyed during catastrophic events.

Algae Resistance

Algae are tiny organisms that can grow on roofs and other surfaces, leaving behind unsightly black streaks or discoloration if left untreated. While not necessarily harmful to a roof, algae can be visually unappealing.

Algae-resistant shingles can help prevent the growth of algae on a roof. Copper granules added to the shingles release copper ions when activated by moisture, slowing down algae growth significantly.

It’s important for homeowners to note that algae-resistant shingles can still experience algae growth over time, especially if they are in an area with high humidity or if a roof is heavily shaded by trees. Periodically cleaning a roof to remove debris and dirt can help reduce the potential for algae growth.

Sound Protection

Shingle roofs are made up of multiple layers of material. These layers can absorb sound waves and provide sound protection for those living inside the home. This can be a much-appreciated benefit of shingle roofs in areas with high levels of noise pollution, such as near an airport or busy highway.

It’s important for homeowners to note that not all shingle roofs provide the same level of sound protection. If homeowners are interested in making sure their roof creates the most comfortable living environment possible by reducing noise levels from weather, traffic, and neighbors, it’s recommended that they consult with a roofing professional to determine the best shingle material option.

Design and Color Options

Shingle roofs are available in a wide variety of designs and color options. Choosing a shingle roof allows a homeowner to create a customized look that complements their personal style. A well-designed roof can also boost a home’s curb appeal and increase resale value. Other roofing types have limited design options, which can make it more difficult for a homeowner to get the exact look they want for their home.

It’s also worth noting that homeowners will want to consider color options for functional reasons as well as aesthetics. Darker colors can absorb more heat and affect the temperature inside a home. Working with a roofing professional can help homeowners determine the best color options for aesthetics and climates.

Easy Installation and Maintenance

Shingle roofs are considered easier to install by contractors and easier to maintain by homeowners compared to other roofing materials. They are relatively lightweight, making them more manageable for a roofing team to handle, move, and install. Where tile or metal roofs can require specialized tools, shingle roofs have a simple installation process that decreases installation time and cost.

When it comes to maintaining a shingle roof, tasks include removing debris and routinely checking for damage. With simple maintenance requirements, it’s easy for homeowners to ensure their shingle roof lasts as long as possible while they avoid costly repairs or premature replacements.

Shingle Roof Installation: DIY vs. Hiring a Professional 

When homeowners are considering shingle roof installation, they may wonder whether to hire a professional or attempt a DIY approach. While replacing a few shingles on a small section of the roof can be a manageable DIY task for some, installing shingles on an entire roof is more complex and poses serious safety risks. Poorly laid shingles can also lead to leaks and cause serious damage to a roof’s structure. Homeowners should always weigh each option’s pros and cons before deciding.

Professional shingle installation offers several advantages. A reputable roofing company has the right tools, expertise, and workers to complete the job quickly and correctly. Professional roofers know how to adjust for roof pitch and meet all necessary building codes. In addition, most roofing contractors offer guarantees on their work, giving homeowners peace of mind.

In contrast, a DIY approach can save homeowners money if they have the necessary skills, tools, and time. To lay shingles themselves, homeowners will need a chalk line, a hammer, a utility knife, a sturdy ladder, a roof harness, roofing nails, fasteners, and shingles. This list assumes that the roof’s decking is in good condition and that the flashing, underlayment, vents, and drip edge are already in place.

Homeowners who decide to take a DIY approach will want to proceed with caution. They will want to carefully follow manufacturer instructions and local building codes. Additionally, they will need to be aware of the safety risks involved in working on a roof, such as falls and electrocution.

Shingle roof installation can be done professionally or as a DIY project. Each option has advantages and disadvantages, and homeowners are advised to carefully consider their budget, skill level, and time before deciding. Ultimately, the decision to install a shingle roof professionally or as a DIY project will depend on the homeowner’s preferences, experience, and circumstances.

How to Save Money on Shingle Roof Cost

Installing roof shingles can be a significant expense. For homeowners seeking ways to reduce shingle roof costs without compromising on quality, there are several strategies that can help save money on shingle roof installation, including the following.

• Stick to the basics. Choose a simpler shingle design, which will cost less than a more complex one.
• Avoid complicated rooflines. If building a new home, opt for a basic roof layout, such as a gable or hip roof, which will have lower roofing costs than a more complex roof style.
• Ask about discounts. Inquire with the roofing contractor about using factory seconds or discontinued shingles.
• Shop around. Homeowners are generally advised to search for the best roofing companies and compare at least three quotes before choosing a roofing company.
• Wait for the offseason. Install the roof during the offseason, when roofing companies may offer discounts.
• Plan ahead. If you know your roof will need to be replaced soon, it’s a good idea to start saving up for the shingle roof installation to avoid additional financing costs.
• Keep up with roof maintenance. Invest in routine roof maintenance to prolong the roof’s lifespan and prevent expensive repairs or replacements.
• Increase insulation. Adding insulation to the attic can help reduce energy costs and prevent heat loss during colder months.
• Check into financing. Ask the contractor about the availability of financing options or payment plans that can help spread out shingle roof installation costs.
• Go with a lighter color. Opt for a lighter-color shingle that reflects sunlight; this can help to reduce cooling costs during the summer.
• Choose a durable shingle. Choose a shingle that is rated for high wind speeds to avoid costly repairs or replacements in case of strong winds or storms.
• Ask about roof-overs. Consider installing the shingle roof over the existing roof to save money on labor and disposal costs.

Questions to Ask About Shingle Roof Installation

When it comes to shingle roof installation, homeowners will want to ask a number of questions to ensure they’re hiring the best roofer in their area. The following are a few questions homeowners will want to consider asking during the qualification phase of their shingle roof project.

• How much experience do you have installing shingle roofs?
• Are you licensed and insured?
• What is the expected lifespan of a shingle roof?
• Is a shingle roof my best option?
• What type of underlayment will be used to protect my roof from moisture and leaks?
• What is the process for installing a shingle roof?
• How soon can my roof job be added to your schedule?
• How long will my roof installation take?
• Do you offer a warranty or guarantee on the products you use or your labor?
• How do you handle potential issues with the installation or defects with the singles?
• How will you ensure the installation is completed safely?
• How will you protect my property and surrounding area during the installation?
• Do you offer payment options? If so, what is the payment schedule?
• Can I be home during the installation? What steps will you take to minimize disruption to my daily routine?

FAQs

Roof shingles come in various options and offer many benefits, making them a great investment for nearly any home. Homeowners will want to consider the various factors that influence the cost of a shingle roof when determining a budget. Weighing the pros and cons of each material type is also important. The following FAQ section addresses shingle roof costs and installation in more detail.

Q. How long does it take to shingle a roof?

In general, medium-size roofs can be shingled within 2 to 3 days. However, larger or more complex roofs can take longer, especially if they’re quite steep. To set realistic expectations and plan accordingly, homeowners will want to discuss their roofing contractor’s estimated timeline before the project begins.

Q. How does a shingle roof affect the value of my home?

A shingle roof replacement can have a positive impact on the value of a home; in fact, a roof replacement has just over 60 percent return on investment (ROI). New roofs can improve curb appeal and energy efficiency, making a home more attractive to potential buyers. An ROI this high can allow homeowners to recoup more than half of their roof replacement costs when they sell.

Q. How do I calculate how many shingles to buy?

Roof surfaces are measured in squares to determine the number of shingles needed. A roofing square is equal to 100 square feet of the roof. To determine how many squares a roof has, divide the total square footage by 100. For example, a 2,000-square-foot roof would need 20 squares of shingles. A 10 percent to 15 percent trim allowance will need to be added to the total to ensure that there will be enough shingles to cover the roof, even with cuts and waste.

Q. Should you DIY or hire a professional to replace shingles?

It takes specialized skills and knowledge to replace shingles on a roof. Even though DIY may seem like the best or more affordable option, it can lead to costly mistakes and potentially dangerous situations. A professional with the right skills, tools, and materials can ensure that shingle replacement is done correctly, adding value to a home and avoiding costly mistakes.

Q. Is it cheaper to shingle over an existing roof?

A shingle overlay, or roof-over, involves adding a new layer of shingles on top of an existing roof. While this can be cheaper than a full roof replacement, many professional roofing contractors advise against it. The additional weight of the new layer can compromise the roof’s structural integrity and may cover up underlying problems instead of fixing them. Additionally, shingle overlays can void a manufacturer’s warranty.

Q. How long does a shingle roof last?

The lifespan of a shingle roof varies by material. Asphalt shingles, the most common type, last 12 to 30 years. While wood shingles can last 25 years, metal can last 75 years. With proper maintenance, tile and slate can last up to 100 years. A shingle roof’s lifespan is also affected by factors such as weather and ventilation.

Sources: HomeAdvisor, Angi, Fixr, This Old House, Owens Corning Roofing, Remodeling